The Collaborative International Dictionary
Excrescency \Ex*cres"cen*cy\, n. Excrescence. [Obs.]
Wiktionary
n. 1 An excrescent state or condition; the quality or fact of growing out of something; abnormal or excessive development; an example of this. 2 (context obsolete English) An exuberant outburst; an extravagance. 3 (context obsolete English) An excrescence; something excrescent; an outgrowth. 4 (context obsolete English) An abnormal, morbid, or unsightly outgrowth.
Usage examples of "excrescency".
Lastly, the devouter sisters, who looked upon all extraordinary dilatations of that member as protrusions of zeal, or spiritual excrescencies, were sure to honor every head they sat upon, as if they had been marks of grace.
He says, they were a race of men, who delighted to nibble at the superfluities, and excrescencies of books.